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The adiabatic piston: a perpetuum mobile in the mesoscopic realm

Crosignani, Bruno and Di Porto, Paolo and Conti, Claudio (2004) The adiabatic piston: a perpetuum mobile in the mesoscopic realm. Entropy, 6 (1). pp. 50-56. ISSN 1099-4300.

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A detailed analysis of the adiabatic-piston problem reveals, for a finely-tuned choice of the spatial dimensions of the system, peculiar dynamical features that challenge the statement that an isolated system necessarily reaches a time-independent equilibrium state. In particular, the piston behaves like a perpetuum mobile, i.e., it never comes to a stop but keeps wandering, undergoing sizeable oscillations around the position corresponding to maximum entropy; this has remarkable implications on the entropy changes of a mesoscopic isolated system and on the limits of validity of the second law of thermodynamics in the mesoscopic realm.

Item Type:Article
Additional Information:© 2004 by MDPI ( Reproduction for noncommercial purposes permitted. Received: 23 September 2003 / Accepted: 15 December 2003 / Published: 11 March 2004 We wish to thank Noel Corngold for many fruitful discussions.
Subject Keywords:Brownian motors; perpetuum mobile; second law
Record Number:CaltechAUTHORS:CROentr04
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2243
Deposited By: Archive Administrator
Deposited On:18 Mar 2006
Last Modified:26 Dec 2012 08:48

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